US4692065A - Offshore unit structure - Google Patents

Offshore unit structure Download PDF

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Publication number
US4692065A
US4692065A US06/774,588 US77458885A US4692065A US 4692065 A US4692065 A US 4692065A US 77458885 A US77458885 A US 77458885A US 4692065 A US4692065 A US 4692065A
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US
United States
Prior art keywords
ground
reformed
unit structure
mound
rubble
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/774,588
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English (en)
Inventor
Yoshio Suzuki
Mitsuoki Yamamoto
Hisashi Hosomi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Komuten Co Ltd
Original Assignee
Takenaka Komuten Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takenaka Komuten Co Ltd filed Critical Takenaka Komuten Co Ltd
Assigned to TAKENAKA KOMUTEN CO., LTD. reassignment TAKENAKA KOMUTEN CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOSOMI, HISASHI, SUZUKI, YOSHIO, YAMAMOTO, MITSUOKI
Application granted granted Critical
Publication of US4692065A publication Critical patent/US4692065A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0017—Means for protecting offshore constructions
    • E02B17/0021—Means for protecting offshore constructions against ice-loads
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/26—Compacting soil locally before forming foundations; Construction of foundation structures by forcing binding substances into gravel fillings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0069—Gravity structures

Definitions

  • the present invention relates to an offshore unit structure.
  • a cement type solidifying agent is impregnated into and mixed with such soft ground to construct a unit-volume reformed ground, and the desired structure is built upon such reformed ground.
  • the present invention also can be applied to a unit structure used in prospecting for or production of oil in the sea.
  • the present invention is intended to solve these prior art problems and has as an object the provision of an offshore unit structure which is firm and stable and enables a low-cost, rapid construction thereof.
  • a cement type solidifying agent is impregnated into and mixed with the soft ground of the sea bottom to construct a unit-volume reformed ground, and a unit structure body is built upon such reformed ground either directly or with the medium of rubble-mound.
  • FIG. 1 is a side view of the first embodiment of the present invention.
  • FIG. 2 is an enlarged sectional view of the principal parts of the first embodiment.
  • FIGS. 3 to 8 are perspective views showing the several forms of the reformed ground.
  • FIG. 9 is a sectional view of the second embodiment of the present invention.
  • FIG. 10 is a sectional view of the third embodiment of the present invention.
  • FIGS. 1 and 2 illustrate a first embodiment of the present invention.
  • A denotes a sea bottom soft ground
  • B denotes a support ground beneath said soft ground.
  • an underground mixing and processing apparatus provided with excavating blades and agitating elements is run into the sea-bottom soft ground A from a work boat and a cement type solidifying agent is charged into the ground A through said apparatus.
  • said solidifying agent is impregnated into and mixed with the subsoil in said soft ground A, thereby constructing a unit-volume reformed (solidified) ground 1 which reaches the support ground B.
  • rubble-mound 2 is laid over said reformed ground 1 and a unit structure body such as a platform 3 is built up on said rubble-mound 2.
  • the reformed ground 1 may be profiled in diverse ways. For example, it may take a rectangular form as a whole, such as wall-like as shown in FIG. 3, block-type as shown in FIG. 4, and lattice-shaped as shown in FIG. 5, and also may take a columnar form as a whole, such as concentric double-column as shown in FIG. 6, wheel-like as shown in FIG. 7, and block-type as shown in FIG. 8.
  • the platform 3 made of steel or concrete, has a skirt 32 extending downward from the periphery of a platform base 31, said skirt 32 encircling the reformed ground 1. Also, a plurality of raised strips 33 are provided on the underside of said base 31 so that they are thrust into rubble-mound 2.
  • the profile of said platform base may be properly selected in accordance with the configuration of reformed ground 1.
  • the raised strips 33 may be formed sharp-edged so that they may be easily thrust into the rubble-mound.
  • the structure of this invention can resist against gravitational force by virtue of the compressive stress of reformed ground 1, while the sliding force given thereto in the horizontal direction can be counteracted by the shearing stress of skirt 32 and raised strips 33, the shearing stress of rubble-mound 2, the shearing stress produced between rubble-mound 2 and reformed ground 1, the shearing stress of reformed ground 1, and the shearing stress at the bottom of reformed ground 1.
  • the structure of this invention is firm and steadfast against horizontal ice load or earthquake.
  • platform 3 may be directly built upon reformed ground 1, with no medium of rubble-mound 2, where the situations of the work area, the conditions in use and the other factors permit such direct building.
  • FIG. 9 illustrates a second embodiment of the present invention.
  • rubble-mound 2 is built on and along the periphery of reformed ground 1 which is constructed in the same way as the first embodiment described above, and then earth 4 is laid on the area surrounded by said rubble-mound 2, and on this base is built an artificial island 5, which is a unit structure body in the concept of this invention, said artificial island being formed by a circumferential stone wall 51 and an earth mound 52.
  • FIG. 10 illustrates a third embodiment of this invention, in which the artificial island 5 of the above second embodiment is surrounded by a caisson 53.
  • a caisson 53 On the inside of said caisson 53 is built reinforcing rubble-mound 54, and earth mound 52 fills the inside of said reinforcing rubble-mound 54.
  • gravitational force is countervailed by the compressive stress of reformed ground 1, while the sliding force in the horizontal direction can be cancelled by the shearing stress produced between artificial island 5 and rubble-mound 2 and earth 4, the shearing stress of rubble-mound 2 and earth 4, the shearing stress produced between rubble-mound 2 and earth 4 and reformed ground 1, the shearing stress of reformed ground 1, and the shearing stress at the bottom of reformed ground 1.
  • the artificial island is firm and steadfast against horizontal ice load or earthquake.
  • the present invention also can be applied to a submarine unit structure.
  • the present invention finds particularly useful application in trial drilling for or production of oil in the Arctic.
  • the offshore unit structure according to the present invention in its unit structure form, can resist firmly and stably against gravitational force by the reformed ground on which the structure is built. It can also counteract firmly and stably sliding force in the horizontal direction produced by horizontal ice load or earthquake, owing to the increased frictional resistance, especially that between the reformed ground and the unit structure body.
  • the structure according to this invention can be built easily and rapidly during the short summer season in the Arctic region. Moreover, waste is minimized since the structure of this invention is economical and easy to install and remove.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Revetment (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Foundations (AREA)
  • Piles And Underground Anchors (AREA)
US06/774,588 1984-04-23 1985-04-26 Offshore unit structure Expired - Lifetime US4692065A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59-87379 1984-04-23
JP59087379A JPS60230418A (ja) 1984-04-28 1984-04-28 海洋単位構築物

Publications (1)

Publication Number Publication Date
US4692065A true US4692065A (en) 1987-09-08

Family

ID=13913257

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/774,588 Expired - Lifetime US4692065A (en) 1984-04-23 1985-04-26 Offshore unit structure

Country Status (7)

Country Link
US (1) US4692065A (de)
EP (1) EP0179924B1 (de)
JP (1) JPS60230418A (de)
DE (2) DE3590196C2 (de)
GB (1) GB2172922B (de)
NL (1) NL190935C (de)
WO (1) WO1985005138A1 (de)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828431A (en) * 1987-09-18 1989-05-09 Exxon Production Research Company Strengthened protective structure
US5269632A (en) * 1992-10-22 1993-12-14 Shell Oil Company Method for strengthening the structural base of offshore structures
US5275511A (en) * 1992-10-22 1994-01-04 Shell Oil Company Method for installation of piles in offshore locations
US5277519A (en) * 1992-10-22 1994-01-11 Shell Oil Company Well drilling cuttings disposal
US5301754A (en) * 1992-10-22 1994-04-12 Shell Oil Company Wellbore cementing with ionomer-blast furnace slag system
US5301752A (en) * 1992-10-22 1994-04-12 Shell Oil Company Drilling and cementing with phosphate-blast furnace slag
US5305831A (en) * 1993-02-25 1994-04-26 Shell Oil Company Blast furnace slag transition fluid
US5307876A (en) * 1992-10-22 1994-05-03 Shell Oil Company Method to cement a wellbore in the presence of carbon dioxide
US5307877A (en) * 1992-10-22 1994-05-03 Shell Oil Company Wellbore sealing with two-component ionomeric system
US5309997A (en) * 1992-10-22 1994-05-10 Shell Oil Company Well fluid for in-situ borehole repair
US5309999A (en) * 1992-10-22 1994-05-10 Shell Oil Company Cement slurry composition and method to cement wellbore casings in salt formations
US5311944A (en) * 1992-10-22 1994-05-17 Shell Oil Company Blast furnace slag blend in cement
US5311945A (en) * 1992-10-22 1994-05-17 Shell Oil Company Drilling and cementing with phosphate
US5314031A (en) * 1992-10-22 1994-05-24 Shell Oil Company Directional drilling plug
US5314022A (en) * 1992-10-22 1994-05-24 Shell Oil Company Dilution of drilling fluid in forming cement slurries
US5316083A (en) * 1992-12-31 1994-05-31 Shell Oil Company Blast furnace slag spacer
US5322124A (en) * 1992-10-22 1994-06-21 Shell Oil Company Squeeze cementing
US5325922A (en) * 1992-10-22 1994-07-05 Shell Oil Company Restoring lost circulation
US5330006A (en) * 1992-10-22 1994-07-19 Shell Oil Company Oil mud displacement with blast furnace slag/surfactant
US5332040A (en) * 1992-10-22 1994-07-26 Shell Oil Company Process to cement a casing in a wellbore
US5333690A (en) * 1992-12-31 1994-08-02 Shell Oil Company Cementing with blast furnace slag using spacer
US5343951A (en) * 1992-10-22 1994-09-06 Shell Oil Company Drilling and cementing slim hole wells
US5343952A (en) * 1992-10-22 1994-09-06 Shell Oil Company Cement plug for well abandonment
US5343947A (en) * 1992-10-22 1994-09-06 Shell Oil Company Anchor plug for open hole test tools
US5343950A (en) * 1992-10-22 1994-09-06 Shell Oil Company Drilling and cementing extended reach boreholes
US5351759A (en) * 1992-10-22 1994-10-04 Shell Oil Company Slag-cement displacement by direct fluid contact
US5356241A (en) * 1991-10-08 1994-10-18 Seiko Kogyo Kabushiki Kaisha Foundation having cylindrical shell and construction method therefor
US5358049A (en) * 1992-10-22 1994-10-25 Shell Oil Company Conversion of emulsion mud to cement
US5379843A (en) * 1992-10-22 1995-01-10 Shell Oil Company Side-tracking cement plug
US6761508B1 (en) 1999-04-21 2004-07-13 Ope, Inc. Satellite separator platform(SSP)
US8967273B2 (en) 2013-03-13 2015-03-03 Conocophillips Company System for detecting, containing and removing hydrocarbon leaks in a subsea environment

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652693A (en) * 1949-05-16 1953-09-22 Goldman Submersible support for machinery
US2938353A (en) * 1954-12-27 1960-05-31 Shell Oil Co Submersible drilling barge
US3021680A (en) * 1954-12-29 1962-02-20 John T Hayward Submergible drilling barge with hull protective devices
US3529919A (en) * 1967-10-13 1970-09-22 Wladimir Tiraspolsky Anchoring devices
JPS501303A (de) * 1973-05-11 1975-01-08
US3896628A (en) * 1972-12-01 1975-07-29 Redpath Dorman Long North Sea Marine structures
US3906734A (en) * 1973-08-23 1975-09-23 Texaco Inc Fixed marine platform with dispersed base
US3911687A (en) * 1972-05-02 1975-10-14 Olav Mo Foundation method for caissons
JPS5143811A (en) * 1974-10-11 1976-04-14 Kitagawa Iron Works Co Nanjakujibannadono kokashorihoho
US4036161A (en) * 1973-07-04 1977-07-19 The Secretary Of State For Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain & Northern Ireland Underwater anchoring apparatus
US4040263A (en) * 1973-10-11 1977-08-09 A/S Hoyer-Ellefsen Arrangement in or relating to drainage
US4063424A (en) * 1975-09-10 1977-12-20 Takenaka Komuten Co., Ltd. Device for constructing a foundation in soft soil formations
JPS5626725A (en) * 1979-08-07 1981-03-14 Nippon Steel Corp Manufacture of manganese sulfate
JPS5628921A (en) * 1979-08-14 1981-03-23 Golder Ass Ltd Underwater structure
GB2058181A (en) * 1979-08-14 1981-04-08 Golder Ass Ltd Underwater Structure
JPS56150222A (en) * 1980-04-17 1981-11-20 Kajima Corp Construction of marine structure
JPS5766216A (en) * 1980-10-07 1982-04-22 Mitsui Constr Co Ltd Artificial islet and its construction work
US4397586A (en) * 1979-07-06 1983-08-09 Exxon Production Research Co. Offshore arctic structure
US4420275A (en) * 1982-04-19 1983-12-13 Shell Oil Company Alaskan offshore drilling base
US4425055A (en) * 1982-02-02 1984-01-10 Shell Oil Company Two-section arctic drilling structure
US4470725A (en) * 1982-03-01 1984-09-11 Ingenior Thor Furuholmen A/S Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs

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GB1452811A (en) * 1973-04-26 1976-10-20 Vattenbyggnadsbyran Ab Construction for marine or submarine installation
JPS5143812A (en) * 1974-10-11 1976-04-14 Kitagawa Iron Works Co Nanjakujibano dobokujoohitsuyonaanteijibannisuru hoho oyobi sochi
DE2452303A1 (de) * 1974-11-05 1976-05-13 Bayer Ag Extraktionsprodukte aus hefezellwandbestandteile enthaltendem material, ein verfahren zu ihrer herstellung sowie ihre verwendung als arzneimittel
DE2543320A1 (de) * 1975-09-29 1977-04-07 Rudolf Dr Ing Vogel Verfahren und anlage zum gruenden eines bauwerks am meeresboden
GB1511926A (en) * 1976-03-12 1978-05-24 Kitagawa Iron Works Co Construction of foundations
JPS5356841A (en) * 1976-11-01 1978-05-23 Hitachi Shipbuilding Eng Co Method of constructing artificial island
GB1598551A (en) * 1977-03-15 1981-09-23 Hoeyer Ellefsen As Marine structure
GB2079345B (en) * 1980-07-04 1984-04-26 Takenaka Komuten Co Apparatus for treating poor subsoil
JPS5849651A (ja) * 1981-09-17 1983-03-23 電気化学工業株式会社 目地用プレミツクスセメントモルタル
GB2125849B (en) * 1982-03-01 1985-09-11 Takenaka Komuten Co Machine for and method of hardening soft ground in depths
GB2115859B (en) * 1982-03-01 1985-09-11 Takenaka Komuten Co Machine for and method of hardening soft ground in depths

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652693A (en) * 1949-05-16 1953-09-22 Goldman Submersible support for machinery
US2938353A (en) * 1954-12-27 1960-05-31 Shell Oil Co Submersible drilling barge
US3021680A (en) * 1954-12-29 1962-02-20 John T Hayward Submergible drilling barge with hull protective devices
US3529919A (en) * 1967-10-13 1970-09-22 Wladimir Tiraspolsky Anchoring devices
US3911687A (en) * 1972-05-02 1975-10-14 Olav Mo Foundation method for caissons
US3896628A (en) * 1972-12-01 1975-07-29 Redpath Dorman Long North Sea Marine structures
JPS501303A (de) * 1973-05-11 1975-01-08
US4036161A (en) * 1973-07-04 1977-07-19 The Secretary Of State For Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain & Northern Ireland Underwater anchoring apparatus
US3906734A (en) * 1973-08-23 1975-09-23 Texaco Inc Fixed marine platform with dispersed base
US4040263A (en) * 1973-10-11 1977-08-09 A/S Hoyer-Ellefsen Arrangement in or relating to drainage
JPS5143811A (en) * 1974-10-11 1976-04-14 Kitagawa Iron Works Co Nanjakujibannadono kokashorihoho
US4063424A (en) * 1975-09-10 1977-12-20 Takenaka Komuten Co., Ltd. Device for constructing a foundation in soft soil formations
US4397586A (en) * 1979-07-06 1983-08-09 Exxon Production Research Co. Offshore arctic structure
JPS5626725A (en) * 1979-08-07 1981-03-14 Nippon Steel Corp Manufacture of manganese sulfate
JPS5628921A (en) * 1979-08-14 1981-03-23 Golder Ass Ltd Underwater structure
GB2058181A (en) * 1979-08-14 1981-04-08 Golder Ass Ltd Underwater Structure
JPS56150222A (en) * 1980-04-17 1981-11-20 Kajima Corp Construction of marine structure
JPS5766216A (en) * 1980-10-07 1982-04-22 Mitsui Constr Co Ltd Artificial islet and its construction work
US4425055A (en) * 1982-02-02 1984-01-10 Shell Oil Company Two-section arctic drilling structure
US4470725A (en) * 1982-03-01 1984-09-11 Ingenior Thor Furuholmen A/S Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs
US4420275A (en) * 1982-04-19 1983-12-13 Shell Oil Company Alaskan offshore drilling base

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828431A (en) * 1987-09-18 1989-05-09 Exxon Production Research Company Strengthened protective structure
US5356241A (en) * 1991-10-08 1994-10-18 Seiko Kogyo Kabushiki Kaisha Foundation having cylindrical shell and construction method therefor
US5314022A (en) * 1992-10-22 1994-05-24 Shell Oil Company Dilution of drilling fluid in forming cement slurries
US5343950A (en) * 1992-10-22 1994-09-06 Shell Oil Company Drilling and cementing extended reach boreholes
US5322124A (en) * 1992-10-22 1994-06-21 Shell Oil Company Squeeze cementing
US5301752A (en) * 1992-10-22 1994-04-12 Shell Oil Company Drilling and cementing with phosphate-blast furnace slag
US5325922A (en) * 1992-10-22 1994-07-05 Shell Oil Company Restoring lost circulation
US5307876A (en) * 1992-10-22 1994-05-03 Shell Oil Company Method to cement a wellbore in the presence of carbon dioxide
US5307877A (en) * 1992-10-22 1994-05-03 Shell Oil Company Wellbore sealing with two-component ionomeric system
US5309997A (en) * 1992-10-22 1994-05-10 Shell Oil Company Well fluid for in-situ borehole repair
US5309999A (en) * 1992-10-22 1994-05-10 Shell Oil Company Cement slurry composition and method to cement wellbore casings in salt formations
US5311944A (en) * 1992-10-22 1994-05-17 Shell Oil Company Blast furnace slag blend in cement
US5311945A (en) * 1992-10-22 1994-05-17 Shell Oil Company Drilling and cementing with phosphate
US5330006A (en) * 1992-10-22 1994-07-19 Shell Oil Company Oil mud displacement with blast furnace slag/surfactant
US5275511A (en) * 1992-10-22 1994-01-04 Shell Oil Company Method for installation of piles in offshore locations
US5379843A (en) * 1992-10-22 1995-01-10 Shell Oil Company Side-tracking cement plug
US5301754A (en) * 1992-10-22 1994-04-12 Shell Oil Company Wellbore cementing with ionomer-blast furnace slag system
US5358049A (en) * 1992-10-22 1994-10-25 Shell Oil Company Conversion of emulsion mud to cement
US5314031A (en) * 1992-10-22 1994-05-24 Shell Oil Company Directional drilling plug
US5332040A (en) * 1992-10-22 1994-07-26 Shell Oil Company Process to cement a casing in a wellbore
US5269632A (en) * 1992-10-22 1993-12-14 Shell Oil Company Method for strengthening the structural base of offshore structures
US5343951A (en) * 1992-10-22 1994-09-06 Shell Oil Company Drilling and cementing slim hole wells
US5343952A (en) * 1992-10-22 1994-09-06 Shell Oil Company Cement plug for well abandonment
US5343947A (en) * 1992-10-22 1994-09-06 Shell Oil Company Anchor plug for open hole test tools
US5277519A (en) * 1992-10-22 1994-01-11 Shell Oil Company Well drilling cuttings disposal
US5351759A (en) * 1992-10-22 1994-10-04 Shell Oil Company Slag-cement displacement by direct fluid contact
US5333690A (en) * 1992-12-31 1994-08-02 Shell Oil Company Cementing with blast furnace slag using spacer
US5316083A (en) * 1992-12-31 1994-05-31 Shell Oil Company Blast furnace slag spacer
US5305831A (en) * 1993-02-25 1994-04-26 Shell Oil Company Blast furnace slag transition fluid
US6761508B1 (en) 1999-04-21 2004-07-13 Ope, Inc. Satellite separator platform(SSP)
US8967273B2 (en) 2013-03-13 2015-03-03 Conocophillips Company System for detecting, containing and removing hydrocarbon leaks in a subsea environment

Also Published As

Publication number Publication date
WO1985005138A1 (en) 1985-11-21
NL190935B (nl) 1994-06-01
GB8531537D0 (en) 1986-02-05
EP0179924A4 (de) 1987-07-09
JPH0342376B2 (de) 1991-06-27
NL190935C (nl) 1994-11-01
JPS60230418A (ja) 1985-11-15
GB2172922A (en) 1986-10-01
NL8520105A (nl) 1986-03-03
EP0179924B1 (de) 1990-11-07
GB2172922B (en) 1988-07-20
EP0179924A1 (de) 1986-05-07
DE3590196T (de) 1986-04-03
DE3590196C2 (de) 1993-09-30

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